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Unit-related Alarm Codes
Section 11-4
11-3-2 Errors During Normal Operation
Refer to the sections
for details on the alarm codes.
Among these alarm codes, the code of the alarm generated first will be output
to n+11 in the allocated bit area.
11-4 Unit-related Alarm Codes
Unit-related Alarm Codes
(Codes: 0001h to 00FFh)
When a unit-related alarm occurs, the following bits will indicate the status:
List of Alarm Codes
Status
LED: ON: Lit, OFF: Not lit, -: Not change, *: Custom
RUN
ERC
ERH
ER1
ER2
ER3
ER4
PLC WDT error
-
-
ON
OFF
OFF
OFF
OFF
PLC cyclic service monitor error
-
-
ON
→
OFF
(Recover)
-
-
-
-
Bus error (PC21 bus error)
-
-
ON
-
-
-
-
Power failure (power failure prevision)
-
-
-
-
-
-
-
CPU fatal error
-
-
ON
-
-
-
-
CPU non-fatal error
-
-
-
-
-
-
-
Event transmission warning generated
-
-
-
-
-
-
-
Panic generated
*
*
-
*
*
*
*
Unit level alarm generated
-
ON
-
ON
-
-
-
Motion task level alarm generated
-
ON
-
-
-
ON
-
Axis or MLK device slave node level alarm gen-
erated
-
ON
-
-
-
-
ON
Normal operation
ON
OFF
OFF
OFF
OFF
OFF
OFF
System stop
OFF
-
-
-
-
-
-
Word
Address
Name
n+12.00
OB03000
Alarm Occurring
n+12.01
OB03001
Unit Alarm Occurring
n+15.01
OB03031
Unit Alarm
m+38
OW0310
Unit Alarm Code
Name
Error log
Alarm
code
Cause and remedy
Timing
Rank
Reset
Error
code
Detail
code
Main board code
error
0370h
0003h
0003h
System code area error on the
main board.
Any time
System
stop
Disabled
Main board RAM
error
0004h
0004h
RAM error in the main board.
Any time
System
stop
Disabled
WDC error
between the main
board and sub-
board.
0005h
0005h
WDC error was generated between
the main board and sub-board.
Any time
System
stop
Disabled
Internal HW-WDT
error
0006h
0006h
Internal HW-WDT error
Any time
System
stop
Disabled
Sub- board code
error
0013h
0013h
System code area error on the sub-
board.
Any time
System
stop
Disabled
User program
error
0026h
0026h
User program area error.
Any time
System
stop
Disabled
CAM data error
0027h
0027h
CAM data area error
Any time
System
stop
Disabled
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